Randy that is a good point, and I guess you really need to look at the construction of the coach.
Most of my experience is with Show Hauler and since they use 5/16" strand board on their steel structure before they apply there bubble insulation and then furring strips and then interior walls. So I had no trouble with sound or insulation.
But since there are so many different build techniques, insulation could play a key roll in deadening sound and keeping the temp just right inside.
Bill
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2012 Showhauler 28'6" Motorhome on a Columbia w/ 450 Mercedes.
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